Demodulation algorithm design of VHF data broadcast signal

Journal of Computer Applications ›› 2013, Vol. 33 ›› Issue (10): 2739-2741.

• Network and communications • Previous Articles Next Articles

Demodulation algorithm design of VHF data broadcast signal

ZHANG Kunfeng¹,GUO Ying¹,ZHANG Guoxiang¹,ZHAO Yang²

1. School of Information and Navigation, Air Force Engeerning University, Xi’an Shaanxi 710077,China;
2. Unit 68078, Lanzhou Gansu 730020,China

Received:2013-03-29 Revised:2013-05-09 Online:2013-11-01 Published:2013-10-01
Contact: ZHANG Kunfeng

甚高频数据广播信号解调算法设计

张坤峰¹,郭英¹,张国祥¹,赵阳²

1. 空军工程大学信息与导航学院，西安 710077
2. 68078部队,兰州 730020

通讯作者: 张坤峰
作者简介:张坤峰（1987-），男，河南新郑人，硕士研究生，主要研究方向：通信信号处理；郭英（1961-），女，山西临汾人，教授，博士生导师，主要研究方向：战场信息侦察与情报获取、通信信号处理、网络空间信息对抗；张国祥（1988-），男，山东滨州人，硕士研究生，主要研究方向：通信信号处理;赵阳（1987-），女，湖北宜昌人，主要研究方向：通信信号处理。
基金资助:
陕西省自然科学基金资助项目

Abstract

Abstract: In order to enhance the performance of the synchronization and demodulation, a Very high frequency (VHF) Data Broadcast (VDB) signal demodulation algorithm based on the solution of differential equation was proposed. This algorithm eliminated the synchronization performance deterioration caused by the frequency offset. And frame synchronization, bit synchronization, frequency offset estimation and correction could be completed within a single set of synchronization symbols. The simulation results show that the method is effective to enhance the VDB signal demodulation performance.

Key words: Very high frequency (VHF) Data Broadcast (VDB) signal, demodulation, synchronization, frequency offset estimation

摘要： 为提高甚高频数据广播(VDB)信号的同步精度和解调性能，根据VDB信号基本格式和特点，提出了一种基于解差分的VDB信号的解调算法，该算法消除了频偏引起的同步性能恶化，能够在一组同步码元内完成帧同步、位同步和频偏估计与校正。仿真结果表明，该方法有效提升了VDB信号解调性能。

关键词: 甚高频数据广播信号, 解调, 同步, 频偏估计

CLC Number:

TN941.4

ZHANG Kunfeng GUO Ying ZHANG Guoxiang ZHAO Yang. Demodulation algorithm design of VHF data broadcast signal[J]. Journal of Computer Applications, 2013, 33(10): 2739-2741.

张坤峰郭英张国祥赵阳. 甚高频数据广播信号解调算法设计[J]. 计算机应用, 2013, 33(10): 2739-2741.

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Demodulation algorithm design of VHF data broadcast signal

甚高频数据广播信号解调算法设计

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